Recuperative gas-furnace.



, PATENTED MAR. 24, 190s. L. C. HAMLINK. REGUPBRATIVB GAS FURNACE; APPLICATION FILED 00T. 30, 1901.

no MODEL.

UNITED STATES PATENT OFFICE.

LAZENBY CLINTON HAMLINK, OF ST. LOUIS, MISSOURI, AASSIGNOR TO LACLEDF. FIRE BRICK MANUFACTURING COMPANY, OF ST. LOUIS,

MISSOURI, A` CORPORATION.

RECUPERATIVE eAs-FURNACE.

SPECIFICATION forming 'part of Letters Patent No. 723,668, dated March 24, 1903.

Application tiled October 30, 1 901. Serial No. 80,497. (No niocleLII To all tlf/tom it may concern:

Be it known that I, LAZENBY CLINTON HAM- LINK,a citizen of the United States, residing in the city of St. Louis, in the State of Missouri, have invented certain new and useful Iniprovements in Recuperative Gas-Furnaces, of which the following isla full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

My invention relates to the structural form of tiling-blocks for use in recuperative gasfurnaces through which the horizontal lines beneath the retort-benches extend and which provide for the circuitous uptake-lines that extend around the tiling-blocks from bottom to top of the tiers-thereof.

My invention consists in features of novelty hereinafter fully described, and pointed out in the claims.

Figure I is a Vertical transverse sectionA through a furnace provided with tilingblocks of my improved construction. Fig. II is a vertical longitudinal sectionV taken on line II II, Fig. I. Fig. III is an enlarged'perspective view of the `upper section of one of the tiling-blocks. Fig. IV is a view, partly in perspective and partly in cross-section, of the end of one of the tiling-blocks surmounted by the lower section of a secondtiling-block.

l designates the retorts in the furnace, and 2 the furnace tire-box.

3 is a combustion-chamber above the firebox, that has communication with passageways 4, located above the fire-box.

'designates inlet air-ues leading to the fire-box 2. Y

6 designates the horizontal lines that are fed from the retort-chamber, and 7 are the uptake-fines that have communication with the passage-ways 4 for the delivery into the combustion-chamber 3 of the air that is heated in passing upwardly through the fines 7.

No invention is herein claimed per Se for the construction thus far described, my invention relating to the construction of tilingblocks whereby the horizontal Hues b' and circuitous uptake-fines 7 are produced.

The tiling-blocks are composed of sections 8 of channel forni, whereby the filles 6 are obtained when the sections are laid together, the sections being provided with grooves and tongues, as seen at 9 and l0, by which an interlocking-joint is vproduced when the sections are placed together. Each of the sections is providedY with transverse grooves `1] (see Fig. IIL) that are adapted to coincide with the grooves of adjoining sections throughout the structure formed in the mounting of the tiling to produce the circuitous uptake-fines 7, as seen'in Fig. I. The tiling-sections are arranged to overlap and break the joints between adjoining blocks throughout the mounting of the tiling, as seen in Fig. II, and the bodies of the tiling extend above the grooves ll to provide supports for the adjacent tiling mounted thereon from bottom to top of the structure.. The

Vtiling is placed alternately, as'seen in Fig. I,

so that the fine extends in zigzag directions by reason of their ungrooved faces being alternately placed one against one Wall at one side of the space in which the tiling-blocks are assembled and thenext surmounting block being placed with its ungrooved face against the wall at the opposite side of such space.

I claim as my inventionl. As a new article of manufacture, an interiorly-channeled tiling-block having exterior grooves extending transversely of the channel in said block, substantially as described.

2. A tiling-block for gas-furnaces having a channel extending therethrough and pro vided With an exterior groove extending transversely of the channel in the block and across two meeting sides of the block, substanti-ally as described.

3. A sectional ntiling-block for gas-furnaces comprising sections longitudinally interiorly channeled'. and provided With exterior grooves extending transversely thereof, and flanges on said sections arranged to mate with each other to provide a locking-joint between the sections, substantially as described.

4. The combination of a series of sectional tiling-blocks interiorly channeled and exteriorly grooved, the said grooves extending HAMLINK. 

